Knob for an appliance



FIG. 1 is a perspective view of a first embodiment of our new design fora knob for an appliance;

FIG. 2 is a front view thereof;

FIG. 3 is a perspective view of a second embodiment of our new designfor a knob for an appliance; and,

FIG. 4 is a front view thereof.

Stippling is used in FIGS. 3 and 4 to show a constrast between light anddark regions of the design, and no specific colors or surface treatmentsare part of the claimed design.

The ornamental design for a knob for an appliance, as shown anddescribed.